Estimation of Dynamic Rollover Threshold of Commercial Vehicles Using Low Speed Experimental Data 932949

A hybrid approach has been developed to determine the dynamic vehicle rollover threshold. The approach uses a roll-plane vehicle model and a simulation based on the testing that was carried out at low speeds, where lateral acceleration are measured. Then, curve fitting techniques are used to extrapolate for the threshold values of lateral acceleration and forward velocity. This approach was validated using lane-change maneuver test data and a good correlation was obtained. Further, this approach is well suited as an objective test procedure to determine the rollover threshold as only lateral accelerations need to be measured.


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